Question

我的目标是在某些滚动后显示div作为位置固定，并以响应宽度显示div元素。

在下面的示例中，脚本可以正常工作，但我希望与橙色元素具有相同的宽度（响应）。

.fixed {
  position: fixed;
  top: 0px;
  z-index': 10000;  
}

Example

Answer 1

将拼写错误修正为z-index并将宽度增加到420px;

.fixed {
  position:fixed;
  top: 0px;
  z-index: 10000;
  width: 420px;
 }

演示：http://jsfiddle.net/y5fo1emc/33/

Answer 2

我无法找到响应宽度的CSS解决方案。 RahulB的答案有效但只使用固定宽度。这是一个响应式JS解决方案，在窗口调整大小上添加了一个函数：

function resizeFixed() {
    var orWidth = $('.wrapper .group .span_4_of_4').width();
    $('.fixed').css('width', orWidth);
}

演示：http://jsfiddle.net/Treeindev/4k93t136/1/

Answer 3

试试这个

<section id="mainContainer">

<div class="section group">
    <div class="col span_4_of_4">
 <img src="http://placehold.it/500x150">  


  </div>

  <div class="box-inner">
  <div class="section group wrapper">
    <div class="col span_4_of_4 box">
 <h1>
 I will be fixed after scrolling
 </h1>
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  </div>


<div class="section group">
    <div class="col span_4_of_4">
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  </div>
  </div>
  </div>
  </section>



    $(document).ready(function () {

    $(window).scroll(function () {
        if ($(this).scrollTop() > 100) {
            $('.box-inner').addClass('fixed');
        } else {
           $('.box-inner').removeClass('fixed');
        }
    });
});

现场演示 - http://jsfiddle.net/grinmax_/y5fo1emc/37/

滚动后，使用响应宽度修复div位置

3 个答案: